Finding the Fourth Proportional to 16,405.84, 22,641.16 and 10,118.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,405.84 : 22,641.16 = 10,118.48 : x
2. Step 2: Convert to fraction form
   16,405.84/22,641.16 = 10,118.48/x
3. Step 3: Cross multiply
   16,405.84x = 22,641.16 × 10,118.48
4. Step 4: Simplify right side
   16,405.84x = 229,094,124.64
5. Step 5: Solve for x
   x = 229,094,124.64/16,405.84
6. Step 6: Final answer
   x = 13,964.18